Zulip is an open-source team collaboration tool. A vulnerability in version 8.0 is similar to CVE-2023-32677, but applies to multi-use invitations, not single-use invitation links as in the prior CVE. Specifically, it applies when the installation has configured non-admins to be able to invite users and create multi-use invitations, and has also configured only admins to be able to invite users to streams. As in CVE-2023-32677, this does not let users invite new users to arbitrary streams, only to streams that the inviter can already see. Version 8.1 fixes this issue. As a workaround, administrators can limit sending of invitations down to users who also have the permission to add users to streams.

Zulip is an open-source team collaboration tool. It was discovered by the Zulip development team that active users who had previously been subscribed to a stream incorrectly continued being able to use the Zulip API to access metadata for that stream. As a result, users who had been removed from a stream, but still had an account in the organization, could still view metadata for that stream (including the stream name, description, settings, and an email address used to send emails into the stream via the incoming email integration). This potentially allowed users to see changes to a stream’s metadata after they had lost access to the stream. This vulnerability has been addressed in version 7.5 and all users are advised to upgrade. There are no known workarounds for this issue.

Zulip is an open source team chat application. A weekly cron job (added in 50256f48314250978f521ef439cafa704e056539) demotes channels to being "inactive" after they have not received traffic for 180 days. However, upon doing so, an event was sent to all users in the organization, not just users in the channel. This event contained the name of the private channel. Similarly, the same commit (50256f48314250978f521ef439cafa704e056539) added functionality to notify clients when channels stopped being "inactive." The first message sent to a private channel which had not previously had any messages for over 180 days (and were thus already marked "inactive") would leak an event to all users in the organization; this event also contained the name of the private channel. Commits 75be449d456d29fef27e9d1828bafa30174284b4 and a2a1a7f8d152296c8966f1380872c0ac69e5c87e fixed the issue. This vulnerability only existed in `main`, and was not part of any published versions.

Zulip is an open-source team collaboration tool with topic-based threading that combines email and chat. When displaying messages with embedded remote images, Zulip normally loads the image preview via a go-camo proxy server. However, an attacker who can send messages could include a crafted URL that tricks the server into embedding a remote image reference directly. This could allow the attacker to infer the viewer’s IP address and browser fingerprinting information. This vulnerability is fixed in Zulip Server 5.6. Zulip organizations with image and link previews [disabled](https://zulip.com/help/allow-image-link-previews) are not affected.

Improper Access Control in GitHub repository zulip/zulip prior to 4.10.

Zulip is an open-source team collaboration tool with topic-based threading. Zulip Server version 2.0.0 and above are vulnerable to insufficient access control with multi-use invitations. A Zulip Server deployment which hosts multiple organizations is vulnerable to an attack where an invitation created in one organization (potentially as a role with elevated permissions) can be used to join any other organization. This bypasses any restrictions on required domains on users' email addresses, may be used to gain access to organizations which are only accessible by invitation, and may be used to gain access with elevated privileges. This issue has been patched in release 4.10. There are no known workarounds for this issue. ### Patches _Has the problem been patched? What versions should users upgrade to?_ ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_ ### For more information If you have any questions or comments about this advisory, you can discuss them on the [developer community Zulip server](https://zulip.com/developer-community/), or email the [Zulip security team](mailto:security@zulip.com).

In zulip before 1.3.12, deactivated users could access messages if SSO was enabled.

A weakness has been identified in diyhi bbs up to 6.8. The impacted element is an unknown function of the file src/main/java/cms/web/action/filePackage/FilePackageManageAction.java of the component File Compression Handler. This manipulation of the argument idGroup causes information disclosure. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be exploited.

A vulnerability was found in yanyutao0402 ChanCMS up to 3.1.2. It has been classified as problematic. Affected is an unknown function of the file /sysApp/find. The manipulation of the argument accessKey/secretKey leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.3 is able to address this issue. It is recommended to upgrade the affected component.

A vulnerability was determined in Scada-LTS 2.7.8.1. Affected by this vulnerability is an unknown functionality of the file /Scada-LTS/dwr/call/plaincall/WatchListDwr.init.dwr. Executing manipulation can lead to information disclosure. The attack may be performed from a remote location. The exploit has been publicly disclosed and may be utilized. The vendor explains: "[T]he risks of indicated vulnerabilities seem to be minimal as all scenarios likely require admin permissions. Moreover, regardless our team fixes those vulnerabilities - the overall risk change to the user due to malicious admin actions will not be lower."

A security flaw has been discovered in elunez eladmin up to 2.7. Affected by this issue is some unknown functionality of the file /auth/info. The manipulation results in information disclosure. The attack can be launched remotely. The exploit has been released to the public and may be exploited.

Archer Platform 6.8 before 6.14 P2 (6.14.0.2) contains an improper access control vulnerability. A remote authenticated malicious user could potentially exploit this to gain access to API information that should only be accessible with extra privileges.

Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.

Separate Groups mode restrictions were not honored in the H5P attempts report, which would display users from other groups. By default this only provided additional access to non-editing teachers.

Separate Groups mode restrictions were not honored when performing a forum export, which would export forum data for all groups. By default this only provided additional access to non-editing teachers.

Broken Access Control in the Report functionality of Delinea PAM Secret Server 11.4 allows unprivileged users, when Unlimited Admin Mode is enabled, to view system reports and modify custom reports via the Report functionality in the Web UI.

TYPO3 is an open source PHP based web content management system released under the GNU GPL. The TYPO3-specific `t3://` URI scheme could be used to access resources outside of the users' permission scope. This encompassed files, folders, pages, and records (although only if a valid link-handling configuration was provided). Exploiting this vulnerability requires a valid backend user account. Users are advised to update to TYPO3 versions 8.7.57 ELTS, 9.5.46 ELTS, 10.4.43 ELTS, 11.5.35 LTS, 12.4.11 LTS, 13.0.1 that fix the problem described. There are no known workarounds for this issue.

Mattermost fails to check the required permissions in the POST /api/v4/channels/stats/member_count API resulting in channel member counts being leaked to a user without permissions.

sf_event_mgt is an event management and registration extension for the TYPO3 CMS based on ExtBase and Fluid. In affected versions the existing access control check for events in the backend module got broken during the update of the extension to TYPO3 12.4, because the `RedirectResponse` from the `$this->redirect()` function was never handled. This issue has been addressed in version 7.4.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Mattermost fails to properly restrict the access of files attached to posts in an archived channel, resulting in members being able to access files of archived channels even if the “Allow users to view archived channels” option is disabled.

A vulnerability, which was classified as problematic, was found in juzaweb CMS up to 3.4.2. This affects an unknown part of the file /admin-cp/logs/email of the component Email Logs Page. The manipulation leads to improper access controls. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

The Prime Addons for Elementor plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.0.1 via the pae_global_block shortcode due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract information from posts that are not public, including drafts, private, password protected, and restricted posts. This applies to posts created with Elementor only.

Netwrix Directory Manager (formerly Imanami GroupID) 11.0.0.0 before 11.1.25162.02 inserts Sensitive Information Into Sent Data to authenticated users.

The wp-schema-pro WordPress plugin before 2.7.16 does not validate post access allowing a contributor user to access custom fields on any post regardless of post type or status via a shortcode

A vulnerability in Cisco Nexus Dashboard could allow an authenticated, remote attacker to learn cluster deployment information on an affected device. This vulnerability is due to improper access controls on a specific API endpoint. An attacker could exploit this vulnerability by sending queries to the API endpoint. A successful exploit could allow an attacker to access metrics and information about devices in the Nexus Dashboard cluster.

Mattermost versions 8.1.x before 8.1.9, 9.2.x before 9.2.5, and 9.3.0 fail to sanitize the metadata on posts containing permalinks under specific conditions, which allows an authenticated attacker to access the contents of individual posts in channels they are not a member of.

The Events Tickets Plus WordPress plugin before 5.9.1 does not prevent users with at least the contributor role from leaking the attendees list on any post type regardless of status. (e.g. draft, private, pending review, password-protected, and trashed posts).

The VK Blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.94.2.2 via the page content block. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive data including the content of private posts and pages.

The Education Addon for Elementor plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.3.1 via the naedu_elementor_template shortcode due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract information from posts that are not public, including drafts, password protected, and restricted posts. This applies to posts created with Elementor only.

The Page Builder: Pagelayer – Drag and Drop website builder plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.9.8 via the 'pagelayer_builder_posts_shortcode' function due to insufficient restrictions on which posts can be included. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract data from private posts that they should not have access to.

A vulnerability was found in Tsinghua Unigroup Electronic Archives Management System 3.2.210802(62532). It has been classified as problematic. Affected is the function download of the file /Searchnew/Subject/download.html. The manipulation of the argument path leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

The Paid Memberships Pro WordPress plugin before 2.12.9 does not prevent user with at least the contributor role from leaking other users' sensitive metadata.

A vulnerability was found in Summer Pearl Group Vacation Rental Management Platform up to 1.0.1. It has been classified as problematic. Affected is an unknown function of the component HTTP Response Header Handler. The manipulation leads to information disclosure. It is possible to launch the attack remotely. Upgrading to version 1.0.2 is able to address this issue. It is recommended to upgrade the affected component.

Multiple access control vulnerabilities in Unifiedtransform version 2.0 and potentially earlier versions allow unauthorized access to personal information of students and teachers. The vulnerabilities include both function-level access control issues in list viewing endpoints and object-level access control issues in profile viewing endpoints. A malicious student user can access personal information of other students and teachers through these vulnerabilities. At the time of publication of the CVE no patch is available.

The Meta Box WordPress plugin before 5.9.4 does not prevent users with at least the contributor role from access arbitrary custom fields assigned to other user's posts.

A vulnerability classified as problematic was found in emqx neuron up to 2.10.0. Affected by this vulnerability is an unknown functionality of the file /api/v2/schema of the component JSON File Handler. The manipulation leads to information disclosure. The attack can be launched remotely. The patch is named c9ce39747e0372aaa2157b2b56174914a12c06d8. It is recommended to apply a patch to fix this issue.

The B Slider- Gutenberg Slider Block for WP plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.9.5 via the 'bsb-slider' shortcode due to insufficient restrictions on which posts can be included. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract data from private posts that they should not have access to.

This broken access control vulnerability pertains specifically to a domain admin who can access configuration & user data of other domains which they should not have access to. Please note the admin is unable to modify the data (read only operation). This UAC issue leads to a data leak to unauthorized users for a domain, with no log of them accessing the data unless they attempt to modify it. This read-only activity is logged to the original domain and does not specify which domain was accessed.

A vulnerability in the getSelectedMimeTypesByRole function of the WP Upload Restriction WordPress plugin allows low-level authenticated users to view custom extensions added by administrators. This issue affects versions 2.2.3 and prior.

A vulnerability classified as problematic has been found in Beijing Yunfan Internet Technology Yunfan Learning Examination System 1.9.2. Affected is an unknown function of the file src/main/java/com/yf/exam/modules/paper/controller/PaperController.java， of the component Exam Answer Handler. The manipulation leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Mattermost fails to perform proper authorization in the /plugins/focalboard/api/v2/users endpoint allowing an attacker who is a guest user and knows the ID of another user to get their information (e.g. name, surname, nickname) via Mattermost Boards.

Students in "Only see own membership" groups could see other students in the group, which should be hidden.

Flarum is a forum software for building communities. Using the mentions feature provided by the flarum/mentions extension, users can mention any post ID on the forum with the special `@"<username>"#p<id>` syntax. The following behavior never changes no matter if the actor should be able to read the mentioned post or not: A URL to the mentioned post is inserted into the actor post HTML, leaking its discussion ID and post number. The `mentionsPosts` relationship included in the `POST /api/posts` and `PATCH /api/posts/<id>` JSON responses leaks the full JSON:API payload of all mentioned posts without any access control. This includes the content, date, number and attributes added by other extensions. An attacker only needs the ability to create new posts on the forum to exploit the vulnerability. This works even if new posts require approval. If they have the ability to edit posts, the attack can be performed even more discreetly by using a single post to scan any size of database and hiding the attack post content afterward. The attack allows the leaking of all posts in the forum database, including posts awaiting approval, posts in tags the user has no access to, and private discussions created by other extensions like FriendsOfFlarum Byobu. This also includes non-comment posts like tag changes or renaming events. The discussion payload is not leaked but using the mention HTML payload it's possible to extract the discussion ID of all posts and combine all posts back together into their original discussions even if the discussion title remains unknown. All Flarum versions prior to 1.6.3 are affected. The vulnerability has been fixed and published as flarum/core v1.6.3. As a workaround, user can disable the mentions extension.

A vulnerability, which was classified as problematic, was found in Shenzhen Sixun Software Sixun Shanghui Group Business Management System 7. This affects an unknown part of the file /api/GylOperator/LoadData. The manipulation leads to information disclosure. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Nextcloud Mail is a mail app for the Nextcloud platform. A missing permission check in Nextcloud Mail before 1.4.3 and 1.8.2 allows another authenticated users to access mail metadata of other users. Versions 1.4.3 and 1.8.2 contain patches for this vulnerability; no workarounds other than the patches are known to exist.

A vulnerability was found in dazhouda lecms 3.0.3. It has been rated as problematic. Affected by this issue is some unknown functionality of the file admin/view/default/user_set.htm. The manipulation leads to information disclosure. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in itwanger paicoding 1.0.3 and classified as problematic. Affected by this issue is some unknown functionality of the file /user/home?userId=1&homeSelectType=read of the component Browsing History Handler. The manipulation leads to information disclosure. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Mattermost fails to properly verify the permissions needed for viewing archived public channels,  allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.

A vulnerability was found in xujiangfei admintwo 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /user/home. The manipulation of the argument ID leads to improper access controls. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Pleasanter 1.3.47.0 and earlier contains an improper access control vulnerability, which may allow a remote authenticated attacker to view the temporary files uploaded by other users who are not permitted to access.